Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

vapor

play
noun va·por \ˈvā-pər\

Simple Definition of vapor

  • : a substance that is in the form of a gas or that consists of very small drops or particles mixed with the air

Full Definition of vapor

  1. 1 :  diffused matter (as smoke or fog) suspended floating in the air and impairing its transparency

  2. 2 a :  a substance in the gaseous state as distinguished from the liquid or solid state b :  a substance (as gasoline, alcohol, mercury, or benzoin) vaporized for industrial, therapeutic, or military uses; also :  a mixture (as the explosive mixture in an internal combustion engine) of such a vapor with air

  3. 3 a :  something unsubstantial or transitory :  phantasm b :  a foolish or fanciful idea

  4. 4 plural a archaic :  exhalations of bodily organs (as the stomach) held to affect the physical or mental condition b :  a depressed or hysterical nervous condition

Origin of vapor

Middle English vapour, from Anglo-French vapor, from Latin, steam, vapor


First Known Use: 14th century

Rhymes with vapor


2

vapor

verb va·por

Definition of vapor

va·poredva·por·ing play \-p(ə-)riŋ\

  1. intransitive verb
  2. 1 a :  to rise or pass off in vapor b :  to emit vapor

  3. 2 :  to indulge in bragging, blustering, or idle talk

va·por·er play \-pər-ər\ noun


Examples of vapor

  1. <a faded Southern belle tiresomely vaporing about all the handsome beaux she had in her long-ago youth>



15th Century

First Known Use of vapor

15th century


Medical Dictionary

vapor

noun va·por

Medical Definition of vapor

  1. 1a:  a substance in the gaseous state as distinguished from the liquid or solid stateb:  a substance (as alcohol or benzoin) vaporized for industrial, therapeutic, or military uses

  2. 2vapors or chiefly British vapours pl a:  exhalations of bodily organs (as the stomach) formerly held to affect the physical or mental conditionb:  a depressed or hysterical nervous condition



Variants of vapor

or chiefly British va·pour \ˈvā-pər\play


Seen and Heard

What made you want to look up vapor? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 13, 2016

a trying or distressing experience

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

196.5 pounds 100 pounds 16.96 pounds 2.2 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ